Grain weigher



June 7 .1927' w. LANGERAK GRAIN WEIGHER Filed April l?. 1924 2SheetsSheet 1 June 7, 1927. 1,631,376

W. LANGERAK GRAIN WEIGHER Filed Avril 17. 14

2 Sheets-Sheet 2 u@ Zjyef'/ @fifem W l?? M 9i Patented June 7, 1927.

UNlTfEE 'fSTA-TEQS PATENT `QFlICE.

WIGGERT LANGRAK; or rELLA, Iowa, Assien'on or oNE-nALF'ro MEYERLANGERAK,

or P'ELLA, IOWA.

GRAIN WEIGHER.

Application led April 17, 1924. Serial No. 707,095.

The object of my invention is to provide anautoiiiatic grain weigher ofsimple, durable and comparatively inexpensive construction.

More particularly, my invention relates to a grain weigher adapted toreceive grain discharged from a threshing machine and to weigh the same,yand then'discharge the weighed grain into any` suitable elevator orconveyor.

Still a further object is to provide a weigher rotor havinga number ofpockets thereinwhich are arranged to register with an inlet and adischarge opening and capable of movement from the inlet opening to thedischarge openinej. when a predetermined amount of grain is received inone of the pockets in the rotor.

Still a further Objectis to provide a stop member for retaining thevrotor in proper position with a pocket registering with the inletopening, which stop member is rendered ineffective when a predeterminedamount of grain is received within the pocket of the rotor.

Still a further object is to provide positive means for insuring therotor to be moved to position where it will coact with a stop forpermitting` its movement.

Still a further object is to provide a scale member capable of beingadjusted for varying the' time when'the rot-or will move from oneposition to another.

Still a further object is to provide a spring` actuated pawl 'for.preventing the rotor from moving in one direction.

Viththese and other objects in View, my invention consists in theconstruction, arrangement and combination of the various parts of mydevice, whereby the objects contemplated are attained as hereinaftermore fully set forth, pointed ont in myclaiins, and illustrated intheaccompanying drawings, in which:

Figure 1 isa front elevation ot my iinproved automatic .grainfweigliei',showing grain elevators connected thereto. i

'casing of the weigh'er with :theaotcr and 3 3 of Figure 2 showing a topplan view of the rotor and the weigher frame.

Figure 4 is a vertical, central, sectional view taken on line 4 4 ofFigure Figure 5 is a detail, sectional view taken on line 5 5 of Figure2 showing the stop for retaining the rotor in position to receive thegrain; and

Figure 6 is a detail, sectional view taken on line' 6-5 of Figure 3showing` the bearings for the rotor ann the weigher frame.

In the accompanying drawings, I have used the reference numeral 10 toindicate generally an ordinariv grain elevator used in connection withthe receiving of grain from a grain auger 1l on an ordinary threshingmachine.

The elevator 10 elevates the grain up and discharges it into a chute 12.

My improved weiglierk comprises a casing 13 having a hinged door 14 onits front side. A cosuie member 15 is provided for retaining the door 14iii closed position.

Mounted within the casing 13 is a rectangular iframe which includes apairof sides 16 and 17 and a bottom and top 18 and 19. The rectangularframe just referred to is secured to the casing 13 on its top, bottoniand one side by means oit the rivets 20.

Secured to the sides '1G and 17 of the snpporting frame are the brackets21. The brackets 21 are each provided with a ball bearing race 22 inwhich are ournalled short shafts 23.

A weigher Jrame 24 which is rectangular in outline is fixed to the shortshafts 23 so that the shafts 23 support the weigher frame 24 and permitrotating movement of the weigher frame.

1n order to limit the amount of rotating movement of the weigher trame24, I provide a pair of brackets 25 which are mounted on the sides 16and 17 ot the supporting frame;

The brackets 25 are widened somewhat at their outer free ends and haveinturned flanges 26 on their top and bottom ends,

@which arejadapted tohave the weigher frame strike tliereagainst,thereby-` limiting 'the' amount ofpivotal movement of the `weiglierframe 24.l

Mounted in two of the sides ofthe weigher frame 24 are the ball bearingraces 27 in which is journalled a shaft 28. One end of `the shaft 28extends through a slot 29 formed secured thereto by anges 32 havingrivets 33 extending therethrough for connecting the partitions 31 to thedisks 30.

It will be notedthat the outer ends of the partitions 31 are inclined,as at 34, for forming from each partition a complete pocket. In thedrawings, I have shown the weigher rotor provided with four pocketsreferred to by the reference character B. The weigher rotor A is capableof rotation relative to the weigher frame 24. Y

From the construction of the parts just described. it will be noted thatthe weigher frame is Vmounted upon the supporting frame `in the brackets21 and that the weigher rotor Ar is rotatably mounted within thebearings formed in the weigher frame 24.

The axis of the weigher frame and the axis of the weigher rotol1 arespaced somewhat apart, as clearly shown in Figure 2 of the drawings.

The chute 12 extends into the casing 13 through an opening 35 formed inthe upper side of the casing. The chute 12 is designed to convey graininto the pockets B formed in the .weigher rotor A.

The underside of the casing 13 is provided With an inclined portion 36which forms a discharge opening 37 for the casing to which may besecured an elevator 38. The elevator 38 is in turn connected to anysuitable trough 39 wherein the grain discharged into the trough 39 may.be emptied into any suitable container or wagon. l

Mounted on eachof the disks 30 of the weigher rotor A are a number ofoutwardly projectingr lugs 40, which are so arranged that a set of lugsare so arrangedthat the corresponding ones on each of the disks 30 aredesigned to engage a stop for limiting the movement of the rotorA. Thelugs are so arranged as to cooperate with one particular pocket B forretaining the pocket in proper position to receive grain discharged fromthe chute 12. f

In order to retain the rotor A in position, I mount a pair of rods 41 inthe sides 16 and 17 of the supporting frame, which rods have nuts 42 onone of their ends and a bearing head 43 on the other ends. Y

A coil spring 44 is mounted on each of the rods 41 and is receivedbetween one 'of the surfaces of the sides 16 and 17 and the nuts 42 onthe rods 41, as clearly shown in Figure 5 of the drawings, Y

A shaft 45 is mounted within the bearing heads 43 and has a roller 46mounted thereon.

The lugs 40 are adapted to strike against the roller 46 and any abruptstriking or shock will be taken up by the springs 44, which serve as ashock absorber.

From the construction of the parts just described, it will be seen thatit is necessary in order to rotate the rotor A, to disengage the lugs 40from the roller 46.

In order to balance the weigher rotor A and the weigher frame 24, Iprovide a weight 47 and in order to weigh a predetermined amount ofgrain within any one of the pockets B, I provide a scale member 48having a movable weight 49 thereon.

The scale member 48 and the weight 49 can be adjusted to indicate theamount of weight of grain permitted to enter each pocket B. As the graindischarged into the pocket Badjacent the chute 12 reaches apredetermined weight, then the weigher frame 24, which carries the rotorA, begins to rotate upon the short shafts 23, as an axis, therebycarrying the rotor A downwardly to the position shown in dotted lines inFigure 2 ot' the drawings at which time the lugs 40 will no longer beretained by the roller 46, and then the weight of the grain within thepocket B will cause the rotor A to rotate on its own axis, which is theshaft 28, for permitting the grain to be discharged through thedischarge opening 37.

As one pocket is moved to discharge posi.- tion, the next adjacentpocket is brought into position where it can be filled up.

The rotor A rotates in the direction indicated by the arrow 47.

The weigher frame v24 is permitted to move from the solid line positionin Figure 2 to the dotted line position shown in Figure 2.

. In order to prevent the rotor from any backward movement, that is, inthe direction opposite from the direction indicated by the arrow 47lwhen oneset of the lugs 40 strike the roller 46, I provide a pair ofspring actuated pawls 50;

The spring actuated pawls 50 are mounted upon a shaft 51 whichrisjournalled in a pair of bracket arms 52 secured kto the casing 13.

A pair of coil' springs 53 are wound around the shaft 51 and have oneend anchored around the bracket arms 52 and the y on. thetdoorl. The.countermechanism Vis of anyrsuitable.l kind ,andhas a trip Wheel 55thereon which coacts With a disk 56 on onev Wheel 55, ,ivhichinturnvoperates the Lcoun-v ter 54.

A number of side openings 5,8 are provided in the door 14 of the casing13 wherein the numbers yon the counter may be seen.

The slot 29 formedj in the side 16 .permits the shaft 28.to extend,therethrough so that the disk 5G. may be secured thereon. The slot 29permits the up and vdoivn movement ot the rotor for permitting thelugs() to disengagedrom the roller 1-6.

The door 14 may be opened for adjusting the scale member and the Weightt9 Jjor varying the amount y of Weight permitted to enter each pocketbefore the iveigher rotor operates.

In order to insurel the Weigher rotor A to beraisedso that the higs1.0,strilreiagainst.

the proller 16,' l provide a cam member 58, against which the lugs mustpass when the rotor A is rotated, thus insuring the rotor A to be raisedsutliciently for the upper set of lugs 10 to engage the roller 46.

,The cam 58 provides a pair of means tor raising the Arotor A andinsuring the same to be stopped at the proper place.

Sonie changes may be made inthe construction and arrangement ot thevarious parts of my invention, Without departing trom the real spiritand purpose of my inventionv and it is my intention to cover by myclaims, any modified forms otstructure or use of mechanical equivalents,which may be reasonably included Within their scope.

I claim asl my invention:

1. An automatic Weigher comprising a casing having an inlet and adischarge opening therein a vWeigher rotor j ournaled therein, saidWeigher rotor having` a number of pockets therein adapted to registerwith the inlet and discharge openings in said casing, means torretaining the iveigher rotor in position Where a pocket registers Withthe inlet opening` and a pocket With the discharge opening, said lastmeans being rendered inoperative When the contents of one pocket reach apredetermined Weight for permitting the pocket registering With theinlet opening to move to position Where it registers With the dischargeopening, lugs on said rotor and a cam arranged in said casing torengaging the lugs on the rotor and causing said weigher rotor retainingmeans operative immediately before a pocket registers with said inletopening.

2. An automatic Weigher comprising a casing having an inlet and adischarge opening therein, a Weigher rotor journaled there imi-saidnf'eigher :rotor having .a number of pocketstherein.adaptedV to registerwith the inlet and dischargeV openings in said casing, means forretaining the Weigherrotorin positionivhere a pocket registers with theinlet opening and a pocket With thedis'charge opening, .said last means.comprisingI lugs on said. rotor, a rotor resiliently mounted in saidcasingv andarranged in. the path ot rof tation of the lugs on the rotor,said means being rendered'A inoperative -When the contents ofoneilpocltet reach: a predetermined weight. for permitting the pocketregistering with the inlet opening` to move to position `Where. itregisters with the discharge opening, means for yvary-ing the time whensaid last-means is rendered inoperative,A and a cam supported on saidsupporting frame and positioned to engage -said lugs on the said Weigherrotor for the purpose of ren-` dering` said -Weigher rotor retainingmeansv operative prior to registry ot a pocket with said inlet opening3. An automatic Weigher comprising a casing, a trame in said casing,said casing having an inlet and a discharge opening, a. iveigher frame aWeigherfrotor mounted on said iveigher trame, said iveigher rotor havinga number ot pockets therein adapted to register ivith the inlet anddischargel openings in said casing, means for retaining the Weigherrotor in position Where a pocket registers ivith the inlet opening and apocket with the discharge opening, said last means including a. stoproller resiliently mounted on said trame, a lug on said Wcigher rotorfor each pocket therein adapted toV coact with said stop roller andmeans for permittin-gone lug at a time to pass said stop when thecontents of the pocket corresponding to its lugs reach a predeterminedWeight and a cam secured in said casing for preventing one lug` at timepassing Vsaid stop when a pocket registers With said inlet opening.

41. An automatic iveigher comprising a casing, a frame in said casing,said casing having an inlet and a. discharge opening, a Weigher trame, aWeigher rotor mounted on said Weigher frame, said Weigher rotor having anumber of pockets therein adapted to register With the inlet anddischarge openings in said casing, means for retaining the weigher rotorin position Where a pocket registers With the inlet opening and a pocketwith the discharge opening, said last means including a stop member onsaid frame, said stop being yieldaloly connected to said frame, a lug onsaid Weigher rotor for each pocket therein adapt-ed to coact with saidstop, means for permitting one lug at a time to pass said stop when thecontents ot' the pocket corresponding to its lug reaches a predeterminedWeight and a cam for engaging one of said lugs immediately before an-Utl * other of said lugs reaches said stop for the purpose of insuringengagement of said last mentioned lug with said stop.

5. An automatic Weigher comprising a -casing having an inlet and adischarge opening therein, a Weigher rotor journaled therein, saidiveigher rotor having a number of pockets therein adapted to registerwith the inlet and discharge openings in said casing, means forretaining the Weigher rotor in position Where a pocket registers withthe inlet opening and a pocket with the discharge opening, said lastmeans being rendered inoperative when the contents of one pocket reach apredetermined Weight, for permitting the pocket registering With theinlet opening to move to position Where it registers With the ydischargeopening, a cam for engagingv one of said lugs immediately before itreaches said stop for the purpose of insuring engagement or' said lugwith. said stop and means for preventing the rotor from moving in onedirection.

6. An automatic Weigher comprising a casing having an inlet and adischarge opening therein, a Weigher rotor journaled therein, saidWeigher rotor having a number of pockets therein adapted to registerwith the inlet and discharge openings in said easing, means forretaining the iveigher rotor in position Where a pocket registers withthe inlet openings in said casing, means for retaining the Weigher rotorin position Where a pocket registers with the inlet opening and a pocketwith the discharge opening, said last means being rendered inoperativewhen the contents of one pocket reaches a predetermined Weight forpermitting the pocket registering With the inlet opening to move toposition Where it registers With the discharge opening, and positiv-emeans for insuring said last means to operate after each time it isrendered inoperative, said means comprising a cam for moving saidweigher rotor, thereby renderingv said weigher rotor retaining, meansoperative.

7. An automatic Weigher comprising a supporting frame, a Weigher framemounted f thereon, a Weigher rotor mounted on said Weigher frame, andmeans for retaining the 8. An automatic W-eigher comprising acasinghaving an inlet and a discharge opening therein, a Weigher rotorjournaled therein, said Weigher rotor having a num'- ber of pocketstherein adapted to register with the inlet and discharge openings insaid casing, means for retaining the Weigher rotor in position Where apocket registers with the inlet opening and a pocket with the dischargeopening, said last means being rendered inoperative when the contentsor' one pocket reaches a predetermined Weight for permitting the pocketregistering with the inlet opening to move to position Where itregisters with the discharge opening, a cam for rendering said weigherrotor retaining means operative immediately before one of said pocketsreaches said inlet opening and a counter actuated upon the movement ofthe pockets from one position to another.

9. An automatic Weigher comprising a casing, a Weigher rotor therein,lugs on said Weigher rotor and a resiliently mounted roller in the pathof rotation of said lugs for engaging them one at a time and therebystopping the rotation of said Weigher rotor.

Des Moines, Iowa, April 10, 1924.

.VIGGERT LANGERAK.

